Editor's note: To hear more from Dawn Loggins and her journey, watch Martin Savidge's full report tonight on AC360 at 8p/10p ET

By Vivian Kuo, CNN

Lawndale, North Carolina (CNN) - It's before sunrise, and the janitor at Burns High School has already been down the length of a hallway, cleaning and sweeping classrooms before the day begins.

This particular janitor is painstakingly methodical, even as she administers a mental quiz on an upcoming test. Her name is Dawn Loggins, a straight-A senior at the very school she cleans.

On this day, she maneuvers a long-handled push broom between rows of desks. She stops to pick up a hardened, chewed piece of gum. "This annoys me, because there's a trash can right here," she says.

The worst, she says, is snuff cans in urinals. "It's just rude and pointless."

With her long, straight dark blonde hair and black-rimmed glasses, Dawn looks a bit like Avril Lavigne. But her life is a far cry from that of a privileged pop star.

She was homeless at the start of the school year, abandoned by her drug-abusing parents. The teachers and others in town pitched in - donating clothes and providing medical and dental care. She got the janitorial job through a school workforce assistance program.

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